1 – Shaykh Abu Ja`far at-Tusi by his isnad from Muhammad b. Ahmad b. Yahya from al-`Amraki from `Ali b. Ja`far from his brother Musa b. Ja`far عليه السلام. He said: I asked him about the chicken and the pigeon and what is similar to them walking on feces, then entering the water. Is wudu from it for the salat? He said: No, not unless the water is abundant, an amount of a kurr of water.